Examples with LambdaExpr com.github.javaparser.ast.expr.LambdaExpr used on opensource projects

Example 41 with LambdaExpr

use of com.github.javaparser.ast.expr.LambdaExpr in project drools by kiegroup.

the class Query method createFromExpr.

private MethodCallExpr createFromExpr(String variableName, Expression expr) {
    MethodCallExpr dslExpr = createDslTopLevelMethod(PATTERN_CALL);
    dslExpr.addArgument(context.getVarExpr(variableName));
    context.addExpression(dslExpr);
    MethodCallExpr fromExpr = createDslTopLevelMethod(FROM_CALL);
    LambdaExpr lambdaExpr = new LambdaExpr();
    lambdaExpr.setEnclosingParameters(true);
    TypedExpressionResult result = new ExpressionTyper(context).toTypedExpression(expr);
    for (String usedDeclration : result.getExpressionTyperContext().getUsedDeclarations()) {
        fromExpr.addArgument(context.getVarExpr(usedDeclration));
        lambdaExpr.addParameter(new Parameter(context.getDelarationType(usedDeclration), usedDeclration));
    }
    fromExpr.addArgument(lambdaExpr);
    if (result.getTypedExpression().isPresent()) {
        lambdaExpr.setBody(new ExpressionStmt(result.getTypedExpression().get().getExpression()));
    }
    return fromExpr;
}

Example 42 with LambdaExpr

use of com.github.javaparser.ast.expr.LambdaExpr in project drools by kiegroup.

the class Consequence method executeCall.

private MethodCallExpr executeCall(BlockStmt ruleVariablesBlock, BlockStmt ruleConsequence, Collection<String> verifiedDeclUsedInRHS, MethodCallExpr onCall, Set<String> modifyProperties) {
    for (String modifiedProperty : modifyProperties) {
        NodeList<Expression> arguments = nodeList(new NameExpr(modifiedProperty));
        MethodCallExpr update = new MethodCallExpr(new NameExpr("drools"), "update", arguments);
        ruleConsequence.getStatements().add(new ExpressionStmt(update));
    }
    boolean requireDrools = rewriteRHS(ruleVariablesBlock, ruleConsequence);
    MethodCallExpr executeCall = new MethodCallExpr(onCall != null ? onCall : new NameExpr("D"), EXECUTE_CALL);
    LambdaExpr executeLambda = new LambdaExpr();
    executeCall.addArgument(executeLambda);
    executeLambda.setEnclosingParameters(true);
    if (requireDrools) {
        executeLambda.addParameter(new Parameter(toClassOrInterfaceType(org.drools.model.Drools.class), "drools"));
    }
    NodeList<Parameter> parameters = new BoxedParameters(context).getBoxedParametersWithUnboxedAssignment(verifiedDeclUsedInRHS, ruleConsequence);
    parameters.forEach(executeLambda::addParameter);
    executeLambda.setBody(ruleConsequence);
    return executeCall;
}

Example 43 with LambdaExpr

use of com.github.javaparser.ast.expr.LambdaExpr in project drools by kiegroup.

the class Expressions method namedUnaryLambda.

public static NamedLambda namedUnaryLambda(Expression expr, String text) {
    LambdaExpr lambda = Expressions.unaryLambda(expr);
    String name = Constants.unaryTestName(text);
    FieldDeclaration field = Constants.unaryTest(name, lambda);
    return new NamedLambda(new NameExpr(name), lambda, field);
}

Example 44 with LambdaExpr

use of com.github.javaparser.ast.expr.LambdaExpr in project drools by kiegroup.

the class Expressions method namedLambda.

public static NamedLambda namedLambda(Expression expr, String text) {
    LambdaExpr lambda = Expressions.lambda(expr);
    String name = Constants.functionName(text);
    FieldDeclaration field = Constants.function(name, lambda);
    return new NamedLambda(new NameExpr(name), lambda, field);
}

Example 45 with LambdaExpr

use of com.github.javaparser.ast.expr.LambdaExpr in project drools by kiegroup.

the class Functions method declaration.

public static DirectCompilerResult declaration(FunctionDefNode n, MethodCallExpr list, Expression fnBody) {
    LambdaExpr lambda = Expressions.lambda(fnBody);
    String fnName = Constants.functionName(n.getBody().getText());
    DirectCompilerResult r = DirectCompilerResult.of(Functions.internal(list, new NameExpr(fnName)), BuiltInType.FUNCTION);
    r.addFieldDeclaration(Constants.function(fnName, lambda));
    return r;
}